CEDAR email: AGU session "Current System throughout Geospace": Call for abstracts

[Astrid Maute]

Dear CEDAR community,



We invite you to submit an abstract to the Fall 2025 AGU session: "Current System throughout Geospace: Its Drivers, Dynamics, and Coupling" (SA010). This session seeks contributions on the current system in geospace, its drivers, dynamics, and coupling, using observations, models, and their combinations to connect different AGU sections' perspectives. The full session description is attached for your reference.

View our session: https://agu.confex.com/agu/agu25/prelim.cgi/Session/247933



AGU<https://www.agu.org/annual-meeting> will take place 15-19 December in New Orleans, LA USA as a hybrid meeting. The abstract deadline is Wednesday, 30 July 2025 23:59 EDT/03:59 UTC



We are looking forward to seeing your abstract.  Feel free to contact us at with any questions.



Sincerely,

The session conveners

Astrid Maute, Toshi Nishimura, Patrick Alken, Karl Laundal, Sneha Yadav



SA010: Current System throughout Geospace: Its Drivers, Dynamics, and Coupling
Currents in the magnetosphere interact dynamically with the ionosphere, varying significantly in space and time, especially during strong solar wind driving. Ionospheric currents provide insights into the magnetosphere. A simple picture of field-aligned currents closing at high latitudes exists. The low and mid-latitude current system is illustrated by a solar quiet (Sq) current system connected by interhemispheric field-aligned current and the equatorial electrojet. However, the reality is more complex with currents connecting globally and varying in 3D. These complexities are not fully understood, even though these currents play a significant role in the energetics through energetic precipitating particles, ion-neutral coupling, momentum exchange, and the ionospheric electrodynamo.
Direct current measurements are challenging, often inferred from magnetic perturbations at ground or LEO altitudes and local rocket measurements. This session seeks contributions on the current system, its drivers, dynamics, and coupling, using observations, models, and their combinations to connect different AGU section's perspectives.

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